Door jamb jig

ABSTRACT

A jig for setting a door frame characterized by oppositely facing and similarly arranged sections defining frameworks on opposite sides of the door frame and including provisions for positioning the jig and, hence, the door frame without the need of auxiliary props.

a United States atent 1 1 1 1 3,753,556 Nix Aug. 21, 1973 DOOR JAMB JIG 1,811.518 6/1931 Palmer 269/101 2,813,348 11/1957 Kristensen 33/194 [761 Invent w'mam m" 200 3,202,417 8/1965 Einsmann 269/97 Ave-1 Evans/111e, 47712 3,061,302 10/1962 06111115.... 269/244 x Nov. 0, 3,262,174 7/1966 Duna A PP 88,312 Primary Examiner-Robert C. Riordon Assistant Examiner-Neil Abrams 52 U.S. c1. 269/97, 33/194, 144/288 R, Mama-warren Flackbe" 269/321 8 51 1111. C1 Bb 1/02, 12041 21/00 [57] ABSTRACT [58] Field of Search 33/194; A jig for setting a door frame characterized by oppo-' 269/-102, 321 F, 321 S; 144/288 R sitely facing and similarly arranged sections defining frameworks on opposite sides of the door frame and in- [56] References Cited cluding provisions for positioning the jig and, hence,

UNITED STATES PATENTS the door frame without the need of auxiliary props. 1,606,634 11/1926 Hinds 269/102 6 Claims, 5 Drawing Figures Patented Aug. 21, 1973 3,753,556

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INVENTOR Wan/7M A. /v/x ATTORNEY DOOR JAMB JIG As is known, the closing of doorways under construction by templates, through prior approaches, has caused problems and expense, considering the many workmen involved and the oftentimes repetitious movement of building materials. While previous approaches were mostly concerned with the setting of wooden door frames, the invention provides a jig for holding a metal door frame plumb in both a vertical and horizontal position, independently of any preinstalled supporting wall.

Actually, the jig defining the invention does not depend on any other material or object for attachment, other than the foundation itself or the support floor. In the former connection, means are provided for selectively gripping any configuration of foundation to satisfy any type of construction demand. Aside from horizontal compensation, the unit is so shaped that vertical plumb positioning is automatically achieved.

The arrangement of the invention is such that the virtually automatic plumbing or leveling of the device presents an important advantage for one-man use, where the manufacture thereof is readily accomplished, and, where, as stated, installation under virtually any type of construction situation is expedited with manyfold advantages.

The invention will become more apparent by the following description, taken in conjunction with the accompanying drawings, wherein FIG. 1 is a view in front elevation of the the invention;

FIG. 2 is an elevational view of a portion of the jig of FIG. 1, taken between the foundation units of such figure and looking towards the left;

FIG. 3 is a rear elevational view of the jig of FIG. 2;

FIG. 4 shows an embodiment of the invention where the jig is used on a supporting surface, and not in combination with a raised foundation, i.e., as in FIG. 1 to 3, inclusive; and,

FIG. 5 is a view in horizontal section, taken at line 5-5 on FIG. 1 and looking in the direction of the arrows, showing further details of the invention.

For the purposes of promoting a better understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated devices, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art towhich the invention relates.

Referring now to FIGS. 1, 2 and 3, a door jamb or frame is shown held in an upright position on a foundation 12 by jig 14 defining the invention. Jig 14 comprises oppositely facing and similarly arranged sections 140 and 14b. Jig section 14a is clamped to foundation 12 between a stationary compression clip 15 and a movable compression clip 17, as is jig section 14b at the proper location on the other side of the door frame 10.

Door frame 10 is mounted on jig sections 14a and 14b between movable position clips and floating compression angles 22, each being slidable on frameworks 14c of jig sections 14a and 14b. In this connection, plates 20a and bolts 20b serve to releasably secure the position clips 20. Proper forward or backward loca-' jig defining tion of the door frame 10 in relation to the foundation 12 is achieved by sliding compression angles 22 along the frameworks 14c of jig sections 144 and 14b towards the jamb 10 after position clips 20v have been secured.

Height adjustment of the door frame 10 is obtained by resting the door frame 10 on door height adjustment assembly 30, which includes a vertically movable angle member 30a, and adjusting a nut 30b to properly locate the door frame 10 in a vertical position.

A firm and secure location of sections 14a and 14b on foundation 12 is attained by tightening a screw assembly 17, the latter including a screw 17a which operates a box-like retaining member 17b. Such action moves stationary adjusting clip 15 into firm contact with one side of foundation l2 and movable compression clip 17 with the opposite side of foundation 12.

Door jamb 10 is adjustable as to forward and backward movement between position clip 20 and floating compression angle 22 by means of tension bolt assembly 16 secured onto position clip 20. When tension bolt assembly 16 is tightened, tension is exerted on frame compression chain 22a, which, in turn, exerts pressure on door frame 10 to maintain such in a proper position. As should be apparent, one end of frame compression chain 22a is secured to floating compression angle 22, while its opposite end relea'sably engages an angle member 16a of tension bolt assembly 16. As stated, movement of door frame 10 is prevented by position clip 20 which is secured to frame 14c of each jig section 14a and 14b in proper location for door frame 10.

In order to assure proper rigidity and squareness of the door frame or jamb 10 during the build-up of a building wall, a support 40 is installed in the upper corner of door frame 10, as particularly shown in FIGS. 1 and 5. Support 40 is mechanically fastened to a crossbar 32 and brackets 34, each being secured to door frame 10 by the clamping arrangement 35 shown in FIG. 5. In this connection, plate 35a has tubes or rods 35b and 350 secured to one surface thereof, the opposite side of rod 35b being in contact with crossbar 32 or an extension on brackets 34 and the opposite side of rod 35c being in contact with the inner surface of door frame 10. Tightening of bolts 34d secures support 40 to the door frame 10 and positively prevents any shifting during the build-up of a wall around the door frame 10. As the height of the wall under construction increases, the door frame 10 becomes more firmly positioned, and the support 40 is removed.

The application of jig 14 to a floor is shown in FIG. 4. Stationary compression clip 15 and movable compression clip 17 are removed, and jig sections 14a and 14b are set on the concrete or other floor in the proper location. A member 50, such as a 2 X 4 plank, is inserted, as shown, and fastened securely to jig sections 14a and 14b. Jig sections 14a and 14b are then carefully aligned in a vertical position by the use of an adjusting screw 42 pivotally secured to each. Door frame 10 is then assembled as previously described.

From the preceding, it should be apparent that the invention provides a simple and effective approach to erecting a door frame independently of any wall structure and without the need for props or other forms of temporary support. The door jamb jig permits accurate alignment both in a horizontal and vertical direction, and, as well, is adaptable for use on a foundation, such as concrete blocks, for example, or on any type of supporting surface. The invention is susceptable to 3 changes, as in proportioning, the type of clamping arrangement employed, or the like. Thus, the above description should be considered illustrative, and not as limiting the scope of the following claims:

I claim:

1. A jig for erecting a door frame having side portions and a top portion comprising a first section positioned at one side portion of said door frame and a second section positioned at the opposite side portion of said door frame, each of said sections having a framework with a first member and second member thereon engaging opposite surfaces of said side portions of said door frame to position said door frame in a vertical direction, and said framework including adjustable means on one of said members positioning the height of said door frame.

2. The jig of claim 1 where said first member is slidable along and reieasably secured to said framework,

and where said second member is slidable along said framework.

3. The jig of claim 2 where means are provided to urge said second member towards said first member to achieve said engaging relationship.

4. The jig of claim 1 where a support member is secured within a corner of said door frame at the juncture of said top portion and a side portion.

5. The jig of claim 1 where said framework rests directly on a floor, where a removable member is disposed between said first section and said second section, and where adjusting means engaging said removable member maintain each section in a vertical position.

6. The jig of claim 1 where clamping means are provided on said framework to secure each section to a foundation.

l h i t Il 

1. A jig for erecting a door frame having side portions and a top portion comprising a first section positioned at one side portion of said door frame and a second section positioned at the opposite side portion of said door frame, each of said sections having a framework with a first member and second member thereon engaging opposite surfaces of said side portions of said door frame to position said door frame in a vertical direction, and said framework including adjustable means on one of said members positioning the height of said door frame.
 2. The jig of claim 1 where said first member is slidable along and releasably secured to said framework, and where said second member is slidable along said framework.
 3. The jig of claim 2 where means are provided to urge said second member towards said first member to achieve said engaging relationship.
 4. The jig of claim 1 where a support member is secured within a corner of said door frame at the juncture of said top portion and a side portion.
 5. The jig of claim 1 where said framework rests directly on a floor, where a removable member is disposed between said first section and said second section, and where adjusting means engaging said removable member maintain each section in a vertical position.
 6. The jig of claim 1 where clamping means are provided on said framework to secure each section to a foundation. 